How Big a Gen to Run a Converter? Some Info.
EDIT: some of my earlier posts in this thread have the wrong idea. As more info came in later, things got less confusing--sort of! :) --------------------- Another look at this topic. It is n...
Forum Discussion
EDIT--Thanks for the KAW link. I used it.
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More confusion? Do you use loaded or unloaded voltages for input and output?
When you measure output with the converter attached to the battery you get a lower voltage somewhere between the battery's voltage and the converter's voltage on that wire pair. Then with the current flowing you also get voltage drop. The converter would be putting out 14.4v but you might be seeing only 14.0 at its output terminals.
So do you use 14.4 as the output voltage or 14.0?
Meanwhile at the input end you also have the loaded AC voltage lower than the unloaded. You might read 122v and then with the converter on that might drop to 119v. So which voltage do you use for the VA?
On that, the KAW seems to read the loaded voltage.
(I didn't read all the Wiki stuff linked earlier, so if the answers are all in there, just let me know and I will read it)
If you use the loaded voltage, isn't that counting the load twice? The PF is in the load. Also is the waveform of the loaded voltage the same as the unloaded, where the PF is from waveform matching?
There is some mystery why the KAW shows input watts as being the same as the load's output watts, so I am wondering if the numbers would come out better if we used the unloaded voltages at each end.
----------
More confusion? Do you use loaded or unloaded voltages for input and output?
When you measure output with the converter attached to the battery you get a lower voltage somewhere between the battery's voltage and the converter's voltage on that wire pair. Then with the current flowing you also get voltage drop. The converter would be putting out 14.4v but you might be seeing only 14.0 at its output terminals.
So do you use 14.4 as the output voltage or 14.0?
Meanwhile at the input end you also have the loaded AC voltage lower than the unloaded. You might read 122v and then with the converter on that might drop to 119v. So which voltage do you use for the VA?
On that, the KAW seems to read the loaded voltage.
(I didn't read all the Wiki stuff linked earlier, so if the answers are all in there, just let me know and I will read it)
If you use the loaded voltage, isn't that counting the load twice? The PF is in the load. Also is the waveform of the loaded voltage the same as the unloaded, where the PF is from waveform matching?
There is some mystery why the KAW shows input watts as being the same as the load's output watts, so I am wondering if the numbers would come out better if we used the unloaded voltages at each end.
